We've been training and playing full-time since we were 18 and 19. So after tennis, we'll be excited to see what it's like to have more free time.

I know I'm good at tennis. Other than that, everything else is a wild card. I'm a wild card.

You can never get complacent because a loss is always around the corner.

I most certainly believe that when you're an athlete, that really translates to all sports. You just understand it, your body understands it, and your mind understands it. And you just - it just clicks. I've found that happening when I play other sports. I've seen it, like when I've hit the ball with other professional athletes, and you can see they're just learning so quickly. It's just something that's in their blood. So I think it was in my parents' blood and they understood.

We don't talk about tennis. I figure she knows what she's doing. I mean, what am I going to tell her?

My ambition is to enjoy my life and to do exactly what I want to do. And I'll do that. I will be free.

Sometimes, you know, once you pay your taxes and once you pay your expenses, once you've lived this life, things add up quickly. And it's easy to become a statistic. And that's something I've always tried to avoid, and I've always said, hey - not that it won't be me, that, hey, it could be me.